A Calibration-Free 175MHz Bandwidth 60dB SNDR 6<sup>th</sup>-Order Bandpass Cascaded Time-Interleaved Noise-Shaping SAR ADC with Optimum Zero Placement
A new Cascaded Time-Interleaved (CaTI) Noise-Shaping (NS) SAR ADC combines high-order cascaded NS and new TI bandwidth enhancement techniques to break the bandwidth limitation of NS SAR. The prototype provides 60dB SNDR and 77.5dB SFDR over a 175MHz bandwidth without any calibration, occupies only 0.02mm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup>, and consumes 3.38mW at 1.4GS/s. With an FoMs of 167dB, CaTI NS SAR is a robust and more efficient alternative to conventional TI NS SAR. The prototype has the highest bandwidth of any NS SAR.
Authors
- Michael P. Flynn (ORCID: https://orcid.org/0000-0001-5070-7512)
- Seungheun Song (ORCID: https://orcid.org/0000-0002-4803-9188)
- Hsiang-Wen Chen (ORCID: https://orcid.org/0000-0002-1449-4625)
- Taewook Kang (ORCID: https://orcid.org/0000-0002-5972-4789)
- Zhiyuan Zhao (ORCID: https://orcid.org/0000-0002-3321-0210)
Institutions
- University of Michigan (US)
- Sungkyunkwan University (KR)
Publication Details
- Published
- 2025-06-08
- DOI
- https://doi.org/10.23919/vlsitechnologyandcir65189.2025.11075147
- Primary Topic
- Viral Infectious Diseases and Gene Expression in Insects
- Type
- article
- Field-Weighted Citation Impact
- 0.00